I only read the nice discussion of "Viewports & Workspaces"; it doesn't tell
you how to do anything (that's elsewhere), but does clarify the terminology.
Maybe somebody already gave you this link (excuse the redundancy if
that's so).
Actually I kind of want a viewport now for myself (I mean one greater
than the physical size of my screen--for the moment it is *exactly* the
size of my physical screen (because I don't really have one really I
guess).